package com.imooc.order.controller;

import com.imooc.order.converter.OrderForm2OrderDTOConverter;
import com.imooc.order.dto.OrderDTO;
import com.imooc.order.enums.ResultEnum;
import com.imooc.order.exception.OrderException;
import com.imooc.order.form.OrderForm;
import com.imooc.order.service.OrderService;
import com.imooc.order.utils.ResultVOUtil;
import com.imooc.order.vo.ResultVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.CollectionUtils;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.*;

import javax.validation.Valid;
import java.util.HashMap;
import java.util.Map;

@RestController
@RequestMapping("/order")
@Slf4j
public class OrderController {

    @Autowired
    private OrderService orderService;

    /**
     * 1. 参数校验
     * 2. 查询商品信息 (调用商品服务)
     * 3. 计算总价
     * 4. 扣库存 (调用商品服务)
     * 5. 订单入库
     */
    @PostMapping("/create")
    public ResultVO<Map<String,String>> create(@Valid OrderForm orderForm, BindingResult bindingResult){
        if (bindingResult.hasErrors()){
            log.error("【创建订单】参数不正确, orderForm={}", orderForm);

            throw new OrderException(ResultEnum.PARAM_ERROR.getCode(),bindingResult.getFieldError().getDefaultMessage());
        }

        OrderDTO orderDTO = OrderForm2OrderDTOConverter.convert(orderForm);
        if (CollectionUtils.isEmpty(orderDTO.getOrderDetailList())){
            log.error("【创建订单】购物车信息为空");
            throw new OrderException(ResultEnum.CART_EMPTY);
        }

        OrderDTO result = orderService.create(orderDTO);

        Map<String,String> map = new HashMap<>();
        map.put("orderId",result.getOrderId());


        return ResultVOUtil.success(map);

    }

    /**
     * 完结订单
     * @param orderId
     * @return
     */
    @PostMapping("/finish")
    public ResultVO<OrderDTO> finish(@RequestParam("orderId") String orderId) {
        return ResultVOUtil.success(orderService.finish(orderId));
    }

    @GetMapping("/buyer")
    public Object buyer(){
        return "this is a buyer!";
    }

    @GetMapping("/seller")
    public Object seller(){
        return "this is a seller!";
    }

/**
 *
 * {
 *     "name":"张三",
 *     "phone":"18868822111",
 *     "address":"慕课网总部",
 *     "openid":"ew3euwhd7sjw9diwkq",
 *     "items":"[{productId:1423113435324,productQuantity:2}]"
 * }
 *
 */
}
